For the knives that I use often I've got 1 fully serrated edge knife, 1 combo edge knife, and about 9 plain edge knives. So, you get the idea what I prefer.

With that said, the two knives I do have serrated edges on are a Spyderco Atlantic Salt and a Benchmade 530S. These two often come in handy for use in, and around, water. When I'm cutting a lot of heavy line those serrations do come in handy.